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Finding the Fourth Proportional to 355,073.34, 489,998.58 and 193,928.46

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Solution

The fourth proportional to 355,073.34, 489,998.58 and 193,928.46 is: 267,619.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,073.34 : 489,998.58 = 193,928.46 : x
  2. Step 2: Convert to fraction form
    355,073.34/489,998.58 = 193,928.46/x
  3. Step 3: Cross multiply
    355,073.34x = 489,998.58 × 193,928.46
  4. Step 4: Simplify right side
    355,073.34x = 95,024,670,021.59
  5. Step 5: Solve for x
    x = 95,024,670,021.59/355,073.34
  6. Step 6: Final answer
    x = 267,619.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.